Appliance base



FIG. 1 is a front perspective view of an appliance base embodying the new design;

FIG. 2 is a rear perspective view of the appliance base shown in FIG. 1;

FIG. 3 is a front view of the appliance base shown in FIG. 1;

FIG. 4 is a rear view of the appliance base shown in FIG. 1;

FIG. 5 is a left side view of the appliance base shown in FIG. 1;

FIG. 6 is a right side view of the appliance base shown in FIG. 1;

FIG. 7 is a top view of the appliance base shown in FIG. 1; and,

FIG. 8 is a bottom view of the appliance base shown in FIG. 1. 

CLAIM The ornamental design for an appliance base, as shown and described. 